Cushion head for spraying devices



July 15, 1930. v I Jr, s ocg s 7 1,770,764

CUSHION HEAD FOR SPRAYING DBVICEKS Filed April 11, 1927 Patented .luly 1,15,; 1930 5 automatically movable to spraying position ou'siirolv nnanfrfon sritaizrne' ij-nvIoEs Application"filed-npril 11,

.This invention relatesito spray headsof the type usedfor sprinkling lawnsorlother places requiring the spray heads to be normally beneath the surface of the ground and when the fluid is sufpplied thereto.

Devices-of this character are. ordinarily of metal, and the upper' portion is usually positionedjslightly below or. substantially; flush with the surface of the ground so as'not to be noticeable or v constitute an Y obstru, ':tion.

While these devices are useful i-n m'ost places,

they are not adapted for athletiefields, golf courses or similaryplaces. For example, in the case of golf, a' hardsurfacei is'provided upon which a golf ballwill bounce and therefore detract from normal playing of thegame.

heretofore been practical to employ automatic sprinklers of this type, because the ball "rolling over. asmooth 'hard surface does not move'in thesame manner as over a grass sur- 7 face, as will be obvious. The problem is not alone present with the game of golf, but other the proper playing of an out-of-door game and is eflicient for spraying purposes.

Anjobject ofwthis invention is to provide such device which maybe used o'n'athletic action a grass surface in that it. yields to. pres fields without interfering with the usual and Other objects proper playingof the games. 7 will herein after appear.

In accordance withthe-invention, I provide'a-Vnon-metallic annulus, preferably of rubber, which covers the top'of the spray head, and is suitablysecured thereto. The

nulus is Ofyielding nature and lsimulatesin sure,'but is sufiiciently rigid to besupportin g and suitably resistant to 'withstandIthd pact of an object against it. 'It hasbeen found} "that'thi's annulushas satisfactorilyovercome ln' ent with themim 5, raimet l ringiloisvul V j v F med Hi he outeredge-,of-rtheiflange' outwardly, as indicated-at 6 and/T; a v .Covering the top-of thefiange portion Q and' c ffitting'into thegroovethereinisarubber-ring 5 or annulus 8phaving outwardly flaring lower I 1927; serial 182,694. i

, the above problems and is admirably adapted a for the" purpose intends By way of illustration"the-invention is! shown on the accompanylng drawings, in"

Fig. lrisa side'elevation of a spray. head which:

with-"a'porti'on thereof in section; Fig.2 is

atop plan Viewof thejsprayhead shown in -"f i Fig; 1; and Fig.-3'-an'eleva tion of'another V tion. 1 7

form of'spra'y headlwith some parts in sec The illustratedembodiment oflthe inverttlOIliShOWIl in Figs. land 2 comprises a cas--" "ing -l=having "at its upp'erfend 'an outwardly extending flange portion2. The general con- ,struction and operation a of "this spray head is shown and described in the patent to John Furthermore,- onthe putting green it has not 1 A. Brooks, Lawn sprinklingmans, Number deemed necessary co-describe the construction and operation of this spray head in, detail. It will be-suflic'ie'nt to say that this spray head cap. on closure. member 13, which in normal posltlonseats on a ledge formed on the is of the type having a nozzle movable. longi I t-tudinally within the-casing" 1 andhavingfaf flange portion, 2gi butwhen'pressure fluid is nozzle and closure areforced outwardly and the closure swings to one side t'ogpermit water from the nozzle to be "sprayedin thedes'ired' manner; The'generalsconstruction and ope skilledin this artil" supplied to the-magenta oft-henoz'zld'the a 'erationof-thisgspray headis described in the i above t patent vand is well known )to those 1 .7 7.

.portion 2*is an upstanding rim 5, and'thejjledge d is 'shorterthan outerledge'fi. The

rims Jon jledges 4; and 5 form an annular groove, the opposite sides fo-f which are flared I sideedgesi9 which interlock or dove tail inthe.

.tion; 9 of the-ring 8 into interlockin-g engagecanized in the lower portion of the ringS, between the opposite sides and forces the outward flaring parts of the ring into their re spective sides so as effectively to hold the ring in engagement with the flange portion 2. It is manifest that the ring 10 provides stiffness to the lower portion of therubber ring and assists in holding the same from being lifted up wardly away from the inclined wall 5. A disc 11 is attached to the cap 3' in any suitable manner, as by a screw 12 and cemented so that .a sec-ureconnection is provided. Formed on the upper'surface'of the rubber ring 8 and disc 11 are a series of radially spaced annular ribs 13.

The spray head is placed in the ground with the rim 5 slightly below the surface of the ground andtlieruhber annulus 8 and disc and provide a surface which closely resembles His positioned substantially flush with the surface of the ground. As heretofore pointed out the annulus 8 and disc 11 do not in any way interfere with the playing of any out-ofdoor; game, such as golf, baseball or football thatofa dirt or grass field. When pressure fluid is introduced the disc 11'is forced up:- ward and spraying maybe readily accom plished. V v

In the form-shown inFig. 3 the casing 1 has a nozzle 14 from the center of which projects a stem 15 having a disc 16 fixed to the upper end thereof. The disc 16 .is provided with a rim 5 similar-1n conformation to the rim 5, shown'in Fig.1. In this instance a chamber, a stem projecting from said nozzle,

a disc on the outer end of the stem normally closing the mouth of said chamber, a vertical upwardextending wall on' said diskhaving itsinner circumferential face inclined toward the axis of the disc, and a'relatively thick fiat rubber covering for said diskjand wall extending outwardly from the uppersurfaces of the disk and wall and having its lower portion anchored in said peripheral wall.

dividual units are disposed in the ground substantially flush with the surface thereof 2. Inalawn sprinkling system inwhich in- V and the spray nozzle is moved upwardly above the. surface wheiiin use, a spray unit comprising, a nozzle-receiving chamber, a nozzle vertically movable in and out of said chamber, a stein'projecting from said nozzle, a disk on the outer end of the stem normally closing the mouth of. said chamber, a vertical up.- ward extending wall on said disk. having; its inner circumferential face inclined toward the axis of the disc, andametallic ring adjacent'the base of said discfor retaining'the edge portion thereof within. said peripheral wall. 7

3. In a lawn sprinkling system in which individual units are disposed-in the ground substantially flush with the surface thereof and the spray nozzle is moved upwardly above the surface when in use, a,spr ay unitcomprising anozzle member, a casing member for said nozzle member, a substantially flat surface associated with one'of said members, a vertical upwardly extending wall around said surface having its inner c rcumferential face -inclined toward the itXlS'OfSil-lfl surface, and

a relatively thick rubber covering for said,

surface and walland having its lower portion anchored in saidperipheral wall.

In testimony whereof I have hereunto signed my name to this specification,

JOHN A. Baooir's;

in the fact that the annulus 17 is in the form of a solid disc while in Figs. 1 'and'2, two partsare provided, aring Sand; smaller disc 11 which fits inside the ring 8;

* It is to; be I understood that numerous changes in details of construction and ar-' rangement and choice of materials may be e'ffec-ted without'departing from the spirit of the invention, especially as'defined the appended claims. I

fWhat'I claim as new and 1; In a lawn sprinkling system in which individual unitsare disposed in the ground substantially flush with the surface thereof and the spray nozzle is moved upwardly above the surface when inuse,a spray unit comprising, "a nozzle-receiving, chamber, a' no'zzle vertically 'movableun and out of said desire to secure by Letters Patent i c i Y 

